it all boils down to perspective. A newbie may see it as a risk but a person who's been in the space for a few years wouldn't view it the same way. Even the newbie will see it as less risky after few years. But what if his wallet gets hacked or he carelessly uses some unsecure software? His funds get stolen and he sees it as a risk.
Age matters too. A person in his 20s would be able to risk it all and lose his lifesaving, but a person in their 40s with a family typically wouldn't even dare.
Even bitcoin's age has a lot to do with it. In its infancy it'd been seen as more of a risk than now 10 years later...
So there are many different ways to look at it. Personally, if you're secure about the way you store your funds and use them, it's not a risk at all.
But being careful is the key.